diff --git a/library/ssl_tls.c b/library/ssl_tls.c
index 7cb1442..bfaefd4 100644
--- a/library/ssl_tls.c
+++ b/library/ssl_tls.c
@@ -79,10 +79,7 @@
 }
 
 
-/*
- * Timers (WIP)
- */
-#if defined(POLARSSL_TIMING_C)
+#if defined(POLARSSL_SSL_PROTO_DTLS)
 /*
  * Start a timer.
  * Passing millisecs = 0 cancels a running timer.
@@ -107,9 +104,7 @@
 
     return( 0 );
 }
-#endif
 
-#if defined(POLARSSL_SSL_PROTO_DTLS)
 /*
  * Double the retransmit timeout value, within the allowed range,
  * returning -1 if the maximum value has already been reached.
@@ -5755,7 +5750,7 @@
 
     if( ssl->in_offt == NULL )
     {
-#if defined(POLARSSL_TIMING_C)
+#if defined(POLARSSL_SSL_PROTO_DTLS)
         /* Start timer if not already running */
         if( ssl->time_limit == 0 )
             ssl_set_timer( ssl, ssl->read_timeout );
@@ -5912,7 +5907,7 @@
 
         ssl->in_offt = ssl->in_msg;
 
-#if defined(POLARSSL_TIMING_C)
+#if defined(POLARSSL_SSL_PROTO_DTLS)
         /* We're going to return something now, cancel timer,
          * except if handshake (renegotiation) is in progress */
         if( ssl->state == SSL_HANDSHAKE_OVER )